Home / 22,668.22-31,284.12-13,239.82

Finding the Fourth Proportional to 22,668.22, 31,284.12 and 13,239.82

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Solution

The fourth proportional to 22,668.22, 31,284.12 and 13,239.82 is: 18,272.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,668.22 : 31,284.12 = 13,239.82 : x
  2. Step 2: Convert to fraction form
    22,668.22/31,284.12 = 13,239.82/x
  3. Step 3: Cross multiply
    22,668.22x = 31,284.12 × 13,239.82
  4. Step 4: Simplify right side
    22,668.22x = 414,196,117.66
  5. Step 5: Solve for x
    x = 414,196,117.66/22,668.22
  6. Step 6: Final answer
    x = 18,272.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.